A 30-year-old man was convicted yesterday of killing the boyfriend of his estranged wife in 2014, the Los Angeles County District Attorney's Office announced.

The jury deliberated for two days before finding Guillermo Hector Diaz of Carson guilty of six felony counts in case TA136133: one count each of first-degree murder and first-degree residential burglary and two counts each of resisting executive officer and dissuading a witness from reporting a crime.

The jury also found true a special allegation that the defendant personally used a deadly and dangerous weapon, a knife, during the commission of the crime.

Diaz is scheduled to be sentenced June 27 in Department K of the Los Angeles County Superior Court, Compton Branch. The defendant faces a maximum possible sentence of 34 years to life in state prison.

Deputy District Attorneys Adrian Roxas and Marlene Martinez of the Victim Impact Program, who coprosecuted the case, said on Dec. 22, 2014, Diaz broke into his estranged wife's South Los Angeles apartment.

Once inside, the defendant confronted his estranged wife and her boyfriend before stabbing the man several times with a pocketknife, prosecutors said.

The violent attack occurred in front of the female victim's 6-year-old daughter, prosecutors added.

When the estranged wife and her daughter tried to call police, Diaz prevented them from doing so, prosecutors said.

The case was investigated by the Los Angeles Police Department, 77th Division.

Los Angeles County District Attorney / in case TA136133 / May 18, 2016